Extraction Process, Component Analysis, and In Vitro Antioxidant, Antibacterial, and Anti-Inflammatory Activities of Total Flavonoid Extracts from Abutilon theophrasti Medic. Leaves

Figure 4

Effects of different concentrations of TFE on LPS induced COX-2 (a) and NO (b) production in RAW 264.7 cells. Cells were pretreated with TFE (50, 100, and 200 μg/ml) for 1 h, followed by LPS (1 μg/ml) stimulation for 18 h. Values represent the mean ± SD of the three independent experiments (^##compared with the control, compared with LPS; and ).

(a)

(b)